Recently I have decided to upgrade our auto light dep greenhouse kits. This was done after getting great feedback from you guys AND I agree with you guys!
The main upgrades make the system better for sure. There are 2 main upgrades: More wiggle channel and wiggle wire, and light lock ribs.
Let's go over the wiggle channel first. The wiggle channel now goes over the first and last rib. This securely locks the body greenhouse and endwall plastic down to the frame. Additionally the wiggle channel runs across the base of the front and back of the greenhouse to lock it down, so it won't flap and keep the heat in when you need it kept in. Lastly, there is wiggle wire and channel running around the door and door frame to keep the plastic tight.
As for the light lock rib, this was designed to create a better light seal at the ends of the dep. The light lock rib is just another rib that is place one foot away from the very first or last rib. The point of this rib is to wrap the endwall plastic around it in order to create a 12" light lock so that pesky light can't get through. The light lock rib is the white plastic on the left of the image below.